CN102404204A - Acceleration method and device as well as system in network topology - Google Patents
Acceleration method and device as well as system in network topology Download PDFInfo
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Abstract
The invention discloses an acceleration method and a device as well as a system in network topology; the acceleration method comprises the following steps of recording the information of an entering line of a data packet during receiving the data packet, generating related information which is matched with the type of the received data packet and generating strategy routing rule information according to the generated related information and the recorded information of the entering line of the received data packet; carrying out acceleration processing on the received data packet; and transmitting different types of data packets related to the received data packet to the entering line which is identical to the entering line of the received data packet according to the strategy routing rule information and simultaneously transmitting the different type of data packets and the received data packet. By adopting the acceleration method, the data transmission function of a conversation connection data packet and a tunnel connection data packet on the same transmission line can be realized; meanwhile, the accelerating device in a multi-line network can be deployed in a multi-arm mode so that the problems of single-point fault and the like caused by the multi-network bridge are avoided, and the transmission speed and the data processing data of the network are quickened.
Description
Technical field
The present invention relates to the communication network technology field, relate in particular to accelerated method, Apparatus and system in a kind of network topology.
Background technology
The high speed development of the Internet brings great convenience for people's work and life, and increasing people joins in the Internet, increasing regional internet usage, and this transmission speed and data processing speed to the Internet is had higher requirement.
At present, a large amount of enterprises, mechanism link to each other with one or more branches through many circuits, these circuits as master-slave redundancy strengthening the availability of network, or as the access speed of load balancing with the lifting network.
When in the multi-line network, disposing acceleration equipment,, then can cause the whole network of client to use during acceleration equipment generation Single Point of Faliure if acceleration equipment disposes with many network bridge modes; If all dispose an acceleration equipment at every circuit, then embodiment is complicated, cost is higher, and the situation that this circuit can't use when still existing acceleration equipment on this circuit to break down on every circuit.If acceleration equipment uses single armed to dispose, then can avoid Single Point of Faliure to cause the obstructed situation of customer network; But the single armed pattern of current acceleration equipment is only supported one arm, and only can be interconnected with a router, can't support the situation of a plurality of routers in the multi-line topology.
Summary of the invention
Main purpose of the present invention provides the accelerated method in a kind of network topology; Being intended to will speed up session connection packet and corresponding acceleration tunnel thereof connects packet and remains on the same transmission lines and transmit data, the transmission speed of accelerating network and data processing speed simultaneously.
The invention discloses the accelerated method in a kind of network topology, may further comprise the steps:
The line information that the record data bag gets into when receiving packet; Produce the related information with the type matching of said data accepted bag, and based on the entry-line information generation strategy routing rule information of the said data accepted bag of related information that is generated and record;
The data accepted bag is quickened to handle;
According to said tactful routing rule information, will send on the entry-line identical with the data of different types bag that the data accepted bag is associated, and the two will be transmitted simultaneously with the data accepted bag.
Preferably, the type of said data accepted bag comprises that the session connection packet is connected packet with the tunnel; Data of different types bag said and that the data accepted bag is associated comprises that quickening the tunnel is connected packet and quickens the session connection packet.
Preferably, said accelerated method also comprises step:
The availability of detected transmission circuit, the synchronous transmission line status;
Preferably, said tactful routing rule information is the related information that is connected with the tunnel according to session connection and dynamically generating.
Preferably, described related information is made up of the dependency relation information that can the unique identification session connection be connected packet with the tunnel.
The invention also discloses the accelerator in a kind of network topology, comprising:
The rule maintenance module; The line information that the record data bag gets into when being used to receive packet; Produce the related information with the type matching of said data accepted bag, and based on the entry-line information generation strategy routing rule information of the said data accepted bag of related information that is generated and record;
Accelerating module is used for the data accepted bag is quickened to handle;
The strategy routing module is used for will sending on the entry-line identical with the data accepted bag with the data of different types bag that the data accepted bag is associated, and the two being transmitted simultaneously based on said tactful routing rule information.
Preferably, the type of said data accepted bag comprises that the session connection packet is connected packet with the tunnel; Data of different types bag said and that the data accepted bag is associated comprises that quickening the tunnel is connected packet and quickens the session connection packet.
Preferably, said accelerator also comprises:
Wireline inspection and synchronization module are used for the availability of detected transmission circuit, synchronous transmission line status.
Preferably, said tactful routing rule information is the related information that is connected with the tunnel according to session connection and dynamically generating.
The invention also discloses the accelerating system in a kind of network topology, comprise center-side and branch, said center-side and branch include accelerator, and the accelerator of center-side comprises a plurality of network interfaces of corresponding connection with router respectively; Said accelerator comprises:
The rule maintenance module; The line information that the record data bag gets into when receiving packet; Produce the related information with the type matching of said data accepted bag, and based on the entry-line information generation strategy routing rule information of the said data accepted bag of related information that is generated and record;
Accelerating module is used for the data accepted bag is quickened to handle;
The strategy routing module is used for will sending on the entry-line identical with the data accepted bag with the data of different types bag that the data accepted bag is associated, and the two being transmitted simultaneously based on said tactful routing rule information.
Accelerated method in the network topology disclosed by the invention, Apparatus and system realize that the session connection packet is connected the function that data wrap in same transmission line transmitting data with the tunnel; Simultaneously, the present invention adopts the multi-arm pattern to dispose the acceleration equipment in the multi-line network, has avoided many bridges to dispose the problems such as Single Point of Faliure that cause, has quickened the transmission speed and the data processing speed of network.
Description of drawings
Fig. 1 is the bilateral acceleration principle sketch map of application proxy;
Fig. 2 is the schematic flow sheet of accelerated method first embodiment in the network topology of the present invention;
If Fig. 3 is among accelerated method first embodiment in the network topology of the present invention data accepted bag type concrete accelerated method schematic flow sheet when being the session connection packet;
Fig. 4 is among accelerated method first embodiment in the network topology of the present invention if data accepted bag type is the tunnel when connecting packet concrete accelerated method schematic flow sheet;
Fig. 5 is the schematic flow sheet of accelerated method second embodiment in the network topology of the present invention;
Fig. 6 is the structural representation of accelerator first embodiment in the network topology of the present invention;
Fig. 7 is the structural representation of accelerator second embodiment in the network topology of the present invention;
The structural representation of accelerating system one embodiment in Fig. 8 network topology of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Further specify technical scheme of the present invention below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The technical scheme that accelerated method, Apparatus and system adopted in the network topology of the present invention is following: the corresponding relation that is connected with the tunnel based on session connection in the bilateral acceleration of application proxy comes packet is done tactful route, realizes that session connection and corresponding tunnel thereof are connected the function of same transmission line transmitting data; Simultaneously, in the multi-line network topology, adopt the multi-arm pattern to dispose acceleration equipment.
With reference to Fig. 1, Fig. 1 is the bilateral acceleration principle sketch map of application proxy, is positioned at the local area network of client 2, and setting up the equipment that TCP (Transmission Control Protocol, transmission control protocol) connects with client 2 is acting server 4; Be positioned at the target lan of server 1, setting up the equipment that TCP is connected with server 1 is agent client 3.Acting server 4 is connected with the TCP of client 2 and is connected 6 with agent client 3 with the TCP of server 1 and is called session; Communicating by letter between acting server 4 and the agent client 3 can be passed through internet, special circuit or VPN (Virtual Private Network; VPN) accomplishes; Set up quick transmission channel between acting server 4 in wide area network and the agent client 3, promptly quick tunnel 5; Concrete communication mode between acting server 4 and the agent client 3 can be confirmed according to physical condition.Transfer of data between acting server 4 and the agent client 3 can be accomplished through rapid transport protocol; Wherein, rapid transport protocol includes but not limited to the UDP (User Datagram Protocol, User Datagram Protocol) of high speed TCP, tape verifying etc.
After acting on behalf of server 4 and receiving connection, in agent client 3 and server 1, distribute corresponding with it " free time " session connection from client 2; Acting server 4 converts the session data that receives to tunneling data, hands to the quick tunnel of having set up 5 and transmits; After agent client 3 receives the tunneling data from acting server 4, hand to server 1 after data are reduced; After agent client 3 receives the answer data of server 1, through data transaction and send acting server 4 to through quick tunnel 5, pass through reduction of data again after, send client 2 to.
Accelerator disclosed by the invention is mainly used in agent client 3 can have a plurality of agent clients 3 and acting server 4 with 4, one network designs of acting server.
Based on the bilateral acceleration principle of application proxy, with reference to Fig. 2, Fig. 2 is the schematic flow sheet of accelerated method first embodiment in the network topology of the present invention, and the accelerated method in the network topology of the present invention comprises:
S01, the line information that the record data bag gets into when receiving packet; Produce the related information with the type matching of said data accepted bag, and based on the entry-line information generation strategy routing rule information of the said data accepted bag of related information that is generated and record;
When receiving packet, write down the line information that this packet gets into, produce the related information that is complementary with said data accepted bag type; Simultaneously, the dynamic generation strategy routing rule of line information that gets into based on this packet of related information that is generated and record.In the present invention, preferred data type comprises that the session connection packet is connected packet with the tunnel; Related information is made up of the dependency relation information that can unique identification session connection packet be connected packet with the tunnel, and these information comprise but are not limited to two four-tuple of IP and port: source IP address, source port, purpose IP address and destination interface.
Preferably, in the present invention, tactful route refers to the mechanism that the self-defining strategy of a kind of foundation carries out Route Selection.Strategy routing rule information is based on the related information of different types of data bag and dynamically generates.Tactful routing rule information among the present invention promptly is based on the session connection packet and is connected the related information of packet with the tunnel and dynamically generates.
S02, the data accepted bag is quickened to handle;
When receiving corresponding packet, to data compress, flow processing such as buffer memory, protocol optimization, cut down volume of transmitted data, the expedited data transmission.
S03, based on said tactful routing rule information, will send on the entry-line identical with the data of different types bag that the data accepted bag is associated, and the two will be transmitted simultaneously with the data accepted bag.
At first, the type of recognition data bag is to quicken the session connection packet or quicken the tunnel to connect packet, is TCP tunnel or UDP tunnel etc.; Transmit packet through the tactful routing rule that matees dynamic generation again, transmit, will speed up the session connection packet simultaneously and quicken the tunnel and be connected packet and transmit together to remain on the same line road.
Through the data accepted bag being quickened to handle, produce relevant related information; The entry-line information of record data accepted bag, the tactful routing rule information that coupling dynamically generates; Tactful routing rule according to dynamic generation; The said data of different types bag that is associated with the data accepted bag is transmitted, realized that session connection and tunnel are connected the function of same circuit transmitting data, reached the beneficial effect of accelerating network data transmission bauds.
With reference to Fig. 3; If Fig. 3 is among accelerated method first embodiment in the network topology of the present invention data accepted bag type concrete accelerated method schematic flow sheet when being the session connection packet; If data accepted bag type is the session connection packet, the concrete steps of the accelerated method in the network topology of the present invention are:
S011, the line information that recording conversation connection packet gets into when receiving the session connection packet; Produce the related information that is connected the type matching of data bag with session, and based on the entry-line information generation strategy routing rule information of the session connection packet of related information that is generated and record;
When the client initiation session, perhaps receiving the session connection packet, recording conversation connects the data transmission link information that packet gets into, and produces session-tunnel-associated information; According to the line information that the session connection packet of session-tunnel-associated information and record gets into, dynamically generate the tactful routing rule of session-tunnel-associated.
Session-tunnel-associated information is made up of the dependency relation information that can unique identification session connection packet be connected packet with the tunnel.
S021, the session connection packet is quickened to handle;
When receiving the session connection packet, to data compress, flow processing such as buffer memory, protocol optimization, cut down volume of transmitted data, the expedited data transmission.
S031, according to session-tunnel strategy routing rule information, will with quicken acceleration tunnel that the session connection packet is associated and connect packet and send to and quicken on the identical entry-line of session connection packet, and the two is transmitted simultaneously.
Based on the session-tunnel-associated strategy routing rule information of dynamic generation, seek the acceleration tunnel that is associated with acceleration session connection packet and be connected packet; Dialogue-based-tunnel strategy routing rule information is done tactful route to quickening tunnel connection packet; And send it on the transmission line identical with quickening the session connection packet; Make the acceleration tunnel that quickens session connection packet and correspondence thereof connect packet and remain on the enterprising data transfer in the same line road, will speed up the session connection packet simultaneously and be connected the packet forwarding with the acceleration tunnel; Described tactful route is that the self-defining strategy of a kind of foundation carries out the mechanism that route is selected.
The entry-line information, the generation session-tunnel-associated information that connect packet through recording conversation; And the line information that gets into according to session-tunnel-associated information and session connection packet dynamically generates session-tunnel strategy routing rule; After the session connection packet quickened to handle; Coupling session-tunnel strategy routing rule information; Will speed up the session connection packet and be connected acceleration tunnel that the data bag is associated with session and connect packet and transmit simultaneously; Realized quickening the session connection packet with quicken the acceleration tunnel that the session connection packet is associated and be connected the function that data wrap in same circuit transmitting data, reached the beneficial effect of accelerating network data transmission bauds.
With reference to Fig. 4; Fig. 4 is among accelerated method first embodiment in the network topology of the present invention if data accepted bag type is the tunnel when connecting packet concrete accelerated method schematic flow sheet; Connect packet if data accepted bag type is the tunnel, the concrete steps of the accelerated method in the network topology of the present invention are:
S012, the line information that record tunnel connection packet gets into when receiving tunnel connection packet; Produce the related information that is connected the type matching of packet with the tunnel, and be connected the entry-line information generation strategy routing rule information of packet with the tunnel of record based on the related information that is generated;
When receiving tunnel connection packet, the record tunnel connects the data transmission link information that packet gets into, and produces tunnel-session association information; Tunnel according to tunnel-session association information and record is connected the line information that packet gets into, and dynamically generates the tactful routing rule of tunnel-session association.
Tunnel-session association information is made up of the dependency relation information that can the unique identification tunnel connects packet and session connection packet.
S022, the tunnel is connected packet quicken to handle;
When receiving the tunnel when connecting packet, to data compress, flow processing such as buffer memory, protocol optimization, cut down volume of transmitted data, the expedited data transmission.
S032, according to tunnel-conversation strategy routing rule information, will with quicken the tunnel and connect acceleration session connection packet that packet is associated and send to and quicken the tunnel and be connected on the identical entry-line of packet, and the two is transmitted simultaneously.
Based on the tunnel-session association strategy routing rule information of dynamic generation, searching is connected the acceleration session connection packet that packet is associated with the acceleration tunnel; Do tactful route based on tunnel-conversation strategy routing rule information to quickening the session connection packet; And send it to and quicken the tunnel and be connected on the packet the same line road; The acceleration session connection packet that quickens tunnel connection packet and correspondence thereof is remained on the same line road transmit, will speed up the tunnel simultaneously and connect packet and quicken the forwarding of session connection packet.
The entry-line information, the generation tunnel-session association information that connect packet through the record tunnel; And be connected the line information that packet gets into the tunnel according to tunnel-session association information and dynamically generate tunnel-conversation strategy routing rule; After the tunnel connected packet and quicken to handle; Coupling tunnel-conversation strategy routing rule information; Will speed up the tunnel connects packet and is connected the acceleration session connection packet forwarding that packet is associated with the acceleration tunnel; Realized quickening the tunnel connect packet with quicken the tunnel and be connected acceleration session connection packet that packet is associated function at same circuit transmitting data, reached the beneficial effect of accelerating network data transmission bauds.
With reference to Fig. 5, Fig. 5 is the schematic flow sheet of accelerated method second embodiment in the network topology of the present invention, and on the basis of above-mentioned accelerated method first embodiment, the accelerated method in the present embodiment network topology also comprises step:
The availability of S04, detection line, the synchrolock state.
If when the transmission line of a network interface breaks off, can relative tactful routing rule, circuit be lost efficacy when breaking off so that no longer on the corresponding transmission line of this network interface, send data; Simultaneously, can data all be forwarded on another circuit, guarantee the unimpeded of transfer of data at this circuit off period; When circuit recovers just often, with recovering relevant with it tactful routing rule.
If data accepted bag type is the session connection packet, then have:
Detect the availability of session connection data packet transmission circuit, simultaneous session connects packet transmission line state; If the transmission lines that the session connection packet gets into breaks off, then relative tactful routing rule, circuit was lost efficacy when breaking off, so that no longer on this transmission line, send data; Simultaneously, can data all be forwarded on another circuit, guarantee the unimpeded of transfer of data at this circuit off period; When circuit recovers just often, with recovering relevant with it tactful routing rule.
Connect packet if data accepted bag type is the tunnel, then have:
Detect the availability that the tunnel connects the packet transmission line, the tunnel connects packet transmission line state synchronously; If the tunnel connects the transmission lines disconnection that packet gets into, then relative tactful routing rule, circuit was lost efficacy when breaking off, so that no longer on this transmission line, send data; Simultaneously, can data all be forwarded on another circuit, guarantee the unimpeded of transfer of data at this circuit off period; When circuit recovers just often, with recovering relevant with it tactful routing rule.
Through availability, the synchronous transmission line status of detected transmission circuit, reduced the probability of data misinformations, reached the beneficial effect of accelerating network data transmission bauds.
With reference to Fig. 6, Fig. 6 is the structural representation of accelerator first embodiment in the network topology of the present invention, and the accelerator in the network topology of the present invention comprises:
Accelerating module 02 is used for the data accepted bag is quickened to handle;
Accelerating module 02 be responsible for to the data that receive packet compress, flow processing such as buffer memory, protocol optimization, cut down volume of transmitted data, the expedited data transmission.
Because these tactful routing rules comprise the acceleration session connection packet that is produced by regular maintenance module 01 is connected packet with the acceleration tunnel incidence relation information; In data transmission procedure; Rule maintenance module 01 is responsible for the circuit of each packet entering that recording conversation connects or the tunnel connects; Upgrade corresponding tactful routing rule simultaneously, so that the transmitting-receiving circuit of the packet that session connection is connected with the tunnel interacts; After session connection packet that 02 pair of accelerating module has received or tunnel connect packet and quicken to handle; 03 recognition data bag type when sending packet of strategy routing module; Mate these routing rules that dynamically update again and transmit packet, remain on the same line road transmitting data to guarantee the acceleration tunnel connection of quickening session connection and correspondence thereof.
The related information that the type that writes down line information, generation and the data accepted bag of the entering of data accepted bag through regular maintenance module 01 is complementary, the tactful routing rule that coupling dynamically generates; 02 pair of packet that has received of accelerating module quickens to handle; 03 identification of strategy routing module is quickened the session connection packet and quickens the tunnel to connect packet and the corresponding relation between the two; And the two is transmitted simultaneously; Realized quickening the session connection packet and be connected the function that data wrap in the same line road transmitting data, reached the beneficial effect of accelerating network data transmission bauds with the acceleration tunnel.
With reference to Fig. 7, Fig. 7 is the structural representation of accelerator second embodiment in the network topology of the present invention, and on the basis of above-mentioned accelerator first embodiment, the accelerator in the present embodiment network topology also comprises:
Wireline inspection and synchronization module 04 are used for the availability of detected transmission circuit, synchronous transmission line status;
Wireline inspection and synchronization module 04 are responsible for the availability of detection line, and the synchrolock state.When wireline inspection and synchronization module 04 detect the circuit disconnection of one of them network interface, can relative tactful routing rule, circuit be lost efficacy when breaking off so that tactful routing module 03 no longer sends data on the circuit of this network interface; Simultaneously, can data all be forwarded on another circuit, guarantee the unimpeded of transfer of data at this circuit off period; When circuit recovers just often, with recovering relevant with it tactful routing rule.
Through availability, the synchronous transmission line status of detected transmission circuit, reduced the probability of data misinformations, reached the beneficial effect of accelerating network data transmission bauds.
Accelerating system in the network topology of the present invention is disposed acceleration equipment with the multi-arm pattern in the multi-line network topology, have a plurality of network interfaces to link to each other with a plurality of routers respectively under the multi-arm pattern, and each independent network interface all works in the single armed pattern; The single armed pattern is a kind of route deployment mode; As far as acceleration equipment; Be meant that acceleration equipment links to each other with router, through on router, disposing PBR (Partition Boot Record, partition boot record), CDP (Cisco Discovery Protocol; Cisco discovery protocol), WCCP aids such as (WebCache Communication Protocol, webpage web cache communication protocol WEBs) is redirected to the acceleration equipment that the single armed pattern is disposed by router with network traffics.The single armed deployment way is little to the customer network environmental impact, and reliable and stable, can not cause customer network obstructed because of the Single Point of Faliure of acceleration equipment.
With reference to Fig. 8; Fig. 8 is the structural representation of accelerating system one embodiment in the network topology of the present invention; Preferably, present embodiment is that example comes the concrete accelerating system of setting forth in the network topology of the present invention in the multi-line network topology, to dispose acceleration equipment with the multi-arm pattern with the situation of double-circuit.A center-side acceleration equipment A of center-side connects two routers with the multi-arm pattern; Be respectively router one and router two on circuit 1 and the circuit 2; Center-side acceleration equipment A will use two single armeds, and the single armed that is connected with router one is arm0, and the single armed that is connected with router two is arm1; Center-side acceleration equipment A is related with the 2 foundation acceleration of branch's acceleration equipment with branch's acceleration equipment 1 of branch 1 and branch 2 respectively; Single armed arm0, arm1 link to each other with router two with router one respectively; Use aids such as CDP, WCCP and cooperate tactful routing module between arm0 and router one, arm1 and the router two; Center-side acceleration equipment A can both operate as normal on every single armed of arm0 and arm1, and the two is independent of each other.Likewise, if center-side acceleration equipment A uses many single armeds, each single armed also all can operate as normal, is independent of each other.
Usually, if network topology actual line way is L (L is a positive integer), the single armed number that then needs also is L; If certain session data bag transmission line is X, the transmission line that the tunnel with session is associated that session is bound is connected packet is Y, then has:
X ≡ Y, X wherein, Y ∈ [0,1 ..., L);
Likewise, if certain tunneling data bag transmission line is Y, the transmission line of the session connection packet that is associated with the tunnel that the tunnel is bound is X, then has:
Y ≡ X, Y wherein, X ∈ [0,1 ..., L).
Accelerating system in the network topology of the present invention can only be disposed an acceleration equipment in the multi-line environment; After network packet is crossed acceleration; Can not influence client's legacy network topological structure yet; The transfer of data route that still can keep legacy network is kept the function such as load balancing, circuit backup of client's multi-line environment; And can avoid many bridges to dispose the problems such as Single Point of Faliure that cause.
The above is merely the preferred embodiments of the present invention; Be not so limit its claim; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the accelerated method in the network topology is characterized in that, may further comprise the steps:
The line information that the record data bag gets into when receiving packet; Produce the related information with the type matching of said data accepted bag, and based on the entry-line information generation strategy routing rule information of the said data accepted bag of related information that is generated and record;
The data accepted bag is quickened to handle;
According to said tactful routing rule information, will send on the entry-line identical with the data of different types bag that the data accepted bag is associated, and the two will be transmitted simultaneously with the data accepted bag.
2. the accelerated method in the network topology according to claim 1 is characterized in that, the type of said data accepted bag comprises that the session connection packet is connected packet with the tunnel; Data of different types bag said and that the data accepted bag is associated comprises that quickening the tunnel is connected packet and quickens the session connection packet.
3. the accelerated method in the network topology according to claim 1 is characterized in that, said accelerated method also comprises step:
The availability of detected transmission circuit, the synchronous transmission line status.
4. the accelerated method in the network topology according to claim 1 is characterized in that, said tactful routing rule information is the related information that is connected with the tunnel according to session connection and dynamically generating.
5. the accelerated method in the network topology according to claim 4 is characterized in that, described related information is made up of the dependency relation information that can the unique identification session connection be connected packet with the tunnel.
6. the accelerator in the network topology is characterized in that, comprising:
The rule maintenance module; The line information that the record data bag gets into when being used to receive packet; Produce the related information with the type matching of said data accepted bag, and based on the entry-line information generation strategy routing rule information of the said data accepted bag of related information that is generated and record;
Accelerating module is used for the data accepted bag is quickened to handle;
The strategy routing module is used for will sending on the entry-line identical with the data accepted bag with the data of different types bag that the data accepted bag is associated, and the two being transmitted simultaneously based on said tactful routing rule information.
7. the accelerator in the network topology according to claim 6 is characterized in that, the type of said data accepted bag comprises that the session connection packet is connected packet with the tunnel; Data of different types bag said and that the data accepted bag is associated comprises that quickening the tunnel is connected packet and quickens the session connection packet.
8. the accelerator in the network topology according to claim 6 is characterized in that, said accelerator also comprises:
Wireline inspection and synchronization module are used for the availability of detected transmission circuit, synchronous transmission line status.
9. the accelerator in the network topology according to claim 6 is characterized in that, said tactful routing rule information is the related information that is connected with the tunnel according to session connection and dynamically generating.
10. the accelerating system in the network topology; It is characterized in that; Comprise center-side and branch, said center-side and branch include like each described accelerator in the claim 6 to 9, and the accelerator of center-side comprises a plurality of network interfaces of corresponding connection with router respectively.
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